2347e7e1ae
- Dt-bindings doc about C-SKY apb bus interrupt controller. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Rob Herring <robh@kernel.org>
63 lines
1.5 KiB
Plaintext
63 lines
1.5 KiB
Plaintext
==============================
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C-SKY APB Interrupt Controller
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==============================
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C-SKY APB Interrupt Controller is a simple soc interrupt controller
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on the apb bus and we only use it as root irq controller.
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- csky,apb-intc is used in a lot of csky fpgas and socs, it support 64 irq nums.
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- csky,dual-apb-intc consists of 2 apb-intc and 128 irq nums supported.
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- csky,gx6605s-intc is gx6605s soc internal irq interrupt controller, 64 irq nums.
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=============================
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intc node bindings definition
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=============================
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Description: Describes APB interrupt controller
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PROPERTIES
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- compatible
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Usage: required
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Value type: <string>
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Definition: must be "csky,apb-intc"
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"csky,dual-apb-intc"
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"csky,gx6605s-intc"
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- #interrupt-cells
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Usage: required
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Value type: <u32>
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Definition: must be <1>
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- reg
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Usage: required
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Value type: <u32 u32>
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Definition: <phyaddr size> in soc from cpu view
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- interrupt-controller:
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Usage: required
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- csky,support-pulse-signal:
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Usage: select
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Description: to support pulse signal flag
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Examples:
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---------
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intc: interrupt-controller@500000 {
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compatible = "csky,apb-intc";
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#interrupt-cells = <1>;
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reg = <0x00500000 0x400>;
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interrupt-controller;
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};
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intc: interrupt-controller@500000 {
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compatible = "csky,dual-apb-intc";
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#interrupt-cells = <1>;
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reg = <0x00500000 0x400>;
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interrupt-controller;
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};
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intc: interrupt-controller@500000 {
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compatible = "csky,gx6605s-intc";
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#interrupt-cells = <1>;
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reg = <0x00500000 0x400>;
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interrupt-controller;
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};
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